Harmony Question about specular (no option)

I was used to and had learned all the way up to Jackpot....then a couple packages I had need to be remade so avoid some conflicts.  Meanwhile no Jackpot,  now Harmony.  So I find in this iteration there is no option to change the specular,  just the normal.   I have a blank specular I need to use for one of my walls,  so that none of the texturing or patterns will show through from the wall I am cloning.   But, we now have still a tutorial for Jackpot and none for Harmony,   so there's no help there for how to get the proper specular into my wall.  I am not interested, nor have I been in just recoloring EA items,  but desire to produce my art so that it appears as I want it to.  I could pick a wall to clone that has a blank specular.....if I could see the specular, I would know which wall to clone.  And I really really need access to the specular! 
Please help!